From f9e2884809cd6f0e11f76b25af9b09047aa9a800 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Thu, 6 Feb 2025 14:30:34 -0500
Subject: Gracefully handle failing return from ftell()

Again I don't think this is actually a concern, but it appeases clang-tidy.
---
 examples/pugl_vulkan_cpp_demo.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'examples/pugl_vulkan_cpp_demo.cpp')

diff --git a/examples/pugl_vulkan_cpp_demo.cpp b/examples/pugl_vulkan_cpp_demo.cpp
index a1d6954..52976e6 100644
--- a/examples/pugl_vulkan_cpp_demo.cpp
+++ b/examples/pugl_vulkan_cpp_demo.cpp
@@ -715,7 +715,12 @@ readFile(const char* const programPath, const std::string& filename)
   }
 
   fseek(file.get(), 0, SEEK_END);
-  const auto fileSize = static_cast<size_t>(ftell(file.get()));
+  const auto filePos = ftell(file.get());
+  if (filePos <= 0) {
+    return {};
+  }
+
+  const auto fileSize = static_cast<size_t>(filePos);
   fseek(file.get(), 0, SEEK_SET);
 
   const auto            numWords = fileSize / sizeof(uint32_t);
-- 
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